Plots of the Pioneer B.t.-hybrids and their non-B.t. isolines were planted on the University of Kentucky, Research and Education Center farm in Princeton, KY during the springs of 1999 - 2001, using no-tillage and standard agronomic practices. Plots were planted on five dates, at two week intervals beginning in mid-April and ending in mid-June. Plots were 30 feet long and contained 4 rows on 30 inch centers. The experiment was planted in a randomized complete block design of four replications. In late July of each year all plots were rated for corn borer inflicted leaf damage using the Guthrie Scale. At the end of the season plots were hand harvested for yields and 20 stalks / plot were split and the number galleries and length of galleries was recorded.
Species 1: Lepidoptera Pyralidae Diatraea grandiosella (southwestern corn borer)
Species 2: Lepidoptera Pyralidae Ostrinia nubilalis (European corn borer)
Keywords: GMO, pest management
The ESA 2001 Annual Meeting - 2001: An Entomological Odyssey of ESA